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<!--
https://bugzilla.mozilla.org/show_bug.cgi?id=713825
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  <title>Test for Bug 713825</title>
  <script type="application/javascript" src="/tests/SimpleTest/SimpleTest.js"></script>
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<a target="_blank" href="https://bugzilla.mozilla.org/show_bug.cgi?id=713825">Mozilla Bug 713825</a>
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<pre id="test">
<script type="application/javascript">

/** 
 * Test for Bug 713825 
 *  test that nsIDocCharset still works backward compatibly
 */
var Ci = SpecialPowers.Ci;
var docShell = SpecialPowers.wrap(window).QueryInterface(Ci.nsIInterfaceRequestor).
                      getInterface(Ci.nsIWebNavigation).
                      QueryInterface(Ci.nsIDocShell);

var charset1 = docShell.charset;
var charset2 = docShell.QueryInterface(Ci.nsIDocCharset).charset;
var charset3 = SpecialPowers.wrap(window).QueryInterface(Ci.nsIInterfaceRequestor).
                      getInterface(Ci.nsIDocCharset).charset;

/* if we get here without throwing and the three charsets are equal, all is OK */
is(charset1, charset2, "QI'd nsIDocCharset.charset should equal nsIDocShell.charset");
is(charset1, charset3, "getInterface'd nsIDocCharset.charset should equal nsIDocShell.charset");

</script>
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